Car-truck



Patented Nov. l, I898. G. L. HARVEY.

G A R T B U C K (Application filed Aug. 27, 1898.)

3 Shaets$heet I.

(No Model.)

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No. 6l3,4l5. Patented No v. I, I898. G. L. HARVEY.

GAR TRUCK.

(Application filed Aug. 27, 1898.)

3 Sheets-Sheet 2,

(No Modl.)

No. slams.

(No Model.)

Patented Nov. I, I898. G. L. HARVEY.

CAR TRUCK.

(Application filed Aug. 27, 1898.;

3 Sheets-Sheet 3 llllllllll lllllllllmli STATES GEORGE L. HARVEY, OFCHICAGO, ILLINOIS.

CAR-TRUCK.

To all whom it may concern.-

Be it known that I, GEORGE L. HARVEY, of Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Car-Trucks, of which the following is a specification.

Car-trucks require, by reason of the immense loads they carry and theshocks and jars of service, to be substantially constructed and of asfew parts as is consistent with strength and the provisions for mountingthe axle-boxes and springs therein.

Car-trucks have heretofore been madeof a variety of materials, includingbars of metal of various forms, steel plates pressed to shape, and thelike.

Car-trucks of the rigid type, to which my invention relates, havepedestals forming guides for the axle-box and provisions for mountingthe springs over the box. These provisionsnecessitate the extension ofthe side members of the truck to the outer pedestal or guide, andheretofore it has been the common practice where the truck is composedof pressed steel to arch the ends of the side members, so as to span theaxle-box. There the trucks have been made with side members composed ofmetal beams, it has been common to rivet or otherwise secure to the endsof the side members an arched hanger whose vertical port-ion formed theouter guide 'for the box, while the arched portion took the thrust ofthe spring. into form to provide this arch and guide at its endsrequires exceedingly heavy and expensive machinery. The other form ofconstruction described has not sufficient strength, because it does notembody adequate support for the outerguides.

It is the object of my invention to provide.

a car-truck having the necessary strength and which may be manufacturedof easilyobtainable materials and without the employment of heavy andexpensive machinery. To attain this object, I use for the side membersof the truck steel plates, beams, or bars, many suitable forms of whichcan be obtained in the market, while special forms adapted to my purposemay be readily produced and adapted. These side members are laterallyofiset at their ends, and their extremities To press a plate of steelSPECIFICATION forming part of Letters Patent No. 613,415, dated November1, 1898. Application'filed Augu t 2'7, 1898 Serial No. 689,698- (Nomodel.)

either form or support the outer guides, the oifsetting being sufficientto extend around the spring upon one or both sides thereof. I employ,preferably, as the basic element of the side-frame member of thecar-truck a flanged beam and have found a channelbeam best suited to mypurposes. These beams are procured or out to a length so that the endportions thereof may be laterally offset to pass the spring and toafford an outer bearing guide or support.

In the preferred construction I take two channel-beams and cut awaytheir lower cor ners and bend the unsevered portions laterally andpreferably on curved lines tangential to'the body of the beam.Thesevering is also preferably done upon curved lines, thus leavi'ngavertical web portion of greater depth than the intermediate curvedportion of the web, this terminal web portion serving as a support forthe outer guide. Two of these channel-bars thus formed are placed backto back and riveted together, and in order to form a bearing for thespring and guides for the box I employ spring-yokes composed of T-bars,the latter being bent with the head upon the inside of the yoke, thewebs presenting outwardly, and riveted between the webs of thechannel-bars.

In the accompanying drawings, Figure 1 is a broken plan, partly insection; Fig. 2, a

partial side elevation; and Fig. 3, a section on the line 3 3 of Fig. 2,looking in the direc= tion of the arrow, said views showing the pre-'ferred construction. Figs. 4. to 17, inclusive, represent modificationsof the invention, Figs. 4, 5, and 6 showing in plan, sectionalelevation, and side elevation, respectively, a construction wherein asingle channel-bar is employed in the side member of the truck. Figs. 7,S, and 9 are similar views showing plate side members. Fig. 10 is asectional elevation showing a side member composed of a beam having asingle flange. Figs. 11 and 12 show a single plate Without flanges.Figs. 13 and 14: show a side member formed of a composite beam composedof a plate and two angles. Figs. 15 and 16 show in sectional and sideelevation a side member composed of a plate with two small channelsriveted thereto, and Fig. 17 is a broken plan View showing a singlechannel-bar side member with a strap or plate riveted thereto andintended to pass on the inside of the spring.

In the drawings, referring first to Figs. 1, 2, and 3, the side membersare composed of the channel-bars 20 21, which are cut to a lengthslightly in excess of the extreme length of the side bar when completed.The lower corners of these channel-beams are cut away to receive theaxle-boxes 22, and the remaining portion of the ends of thesechannel-bars are subjected to the action of a suitable press orbulldozing-machine to produce therein the lateral oval pocket orenlargement 23, and the margins of the webs of the channel-bars areswaged out to provide the transverse stiffening-flanges 21. By referenceto Fig. 2 it will be seen that the webs at the extremities or ends ofthe channel-beams extend below the flanges 21, and these dependingportions (marked 25) give additional rivetingsurface and bearings forthe spring-yokes 26. These latterare preferably constructed of T- bars,the webs of the bars being secured between the channels 20 21, which areplaced back to back and separated by said webs and by suitablefilling-pieces between their ends. The T-har also has its head or flangebent from the flange 21 to the top of the channelbeam to conform to thecurved surfaces of the webs of said beams. The head of the T- bar,forming the inner surfaces of the yoke, affords a suitable bearing uponthe spring-cap 27, by which the spring 28 is confined on top of the box22, while the lower extremities of the yoke extend below thechannel-bars and afford bolt-lugs 29 for the bolt 30,which passesbeneath the box and prevents the separation of the latter from thetruck. The extremities of the T-bar, forming the yoke, constitute thepedestal of the truck and are embraced by flanges or lips on the box inthe usual manner. The flanges of the channel-bar 21 are cut awayparallel to the face of the wheels, as shown at 31 in Fig. 1.

As my invention has to do mainly with the side members of the truck, itis obvious that such side members may be connected in any preferredmanner. I preferably employ channel-bars arranged at right angles to theside members and such as shown at 32 in Fig. 1. Said channel-bars mayfit in between the flanges of the channel 21 and be secured thereto bythe knee-pieces 33, and fol-further security the gusset-plate 31 may beriveted to the flanges of the side members and overlap the connectingmembers 32.

The construction just described is preferred for the reason that whilethe materials employed are such as may be obtained readily and easilyworked or adapted a very strong and serviceable truck is afforded, andsuch a truck will be found adequate to meet the demands for carsdesigned to carry heavy loads and any service requiringa strong andrigid construction. The principle of my invention, however, may beembodied in cars of lighter construction where, from consideration ofeconomy, it may be desired to make a lighter truck. To meet theserequirements, I have illustrated in Figs. at to 17, inclusive, Variousmodifications, and it will be understood that others may be made withinthe scope of my invention. In the construction shown in Figs. 4, 5, and6 I have simply omitted one of the channel-bars. In the constructionshown in Figs. 7, 8, and 9 plates 35 36 are used as the side members ofthe truck, and these plates, while of simpler and cheaper form thanchannel-beams, can be more readily bent, but do not, of course, affordthe same strength. In Fig. 10 another suggested modi-- fioation is inthe employment of an anglebeam 37,having a long web and narrow flange,and two of these might be used placed back to back. In Figs. 11 and 12 Ihave shown a single plate member bent to embrace the spring andaffording an outer support for the yoke. In Figs. 13 and ll I haveillustrated a composite beam made up of the plate 38 and the angles 39.In Figs. 15 and 16 I show a plate 40, having a channel etl rivetedthereto and a second channel 42 spanning the springpocket. In Fig. 17 Ihave shown a channel as the principal element of the side member, with asimple inner strap 43, curved to embrace the spring-pocket.

It will be seen that all of the forms above described are such as arereadily obtainable and easily worked, the several plates, beams, andbars being of ordinary shapes; further, that the shaping of theseseveral beams or bars to receive the spring maybe readily accomplishedwithout the use of expensive or heavy machinery. The cutting away of thecorners of the beams reduces the width, so that the remaining portion isreadily bent to form the spring-pocket. It is also obvious that theseveral forms of construction above described all embody the samegeneral prin ciple of carrying the side member of the truck around thespring, so as to afford an outer support for the yoke or outer member ofthe pedestal, such outer support being integral with the body of thetruck, and thus secures a rigidity which would be impossible to securewere the yoke or pedestal to be hung to the ends of the side members ofthe truck. \Vhile other variations than those described or suggested maybe made, I regard the employment of the yoke in combination with theextended end of the side member as being highly important. I also prefera yoke of the form shown, as it adds strength to the truck instead ofdetracting therefrom and is for that purpose preferably made in a singlepiece, its web or body serving as a suitable filling between the sidemembers where two are employed and as a brace or tie spanning the curvedor offset portion of the side member. I also prefer in all cases toemploy flanged beams, as well as the strengthening-flange formed byturning out the web of the side member adjacent to the spring-pocket.

The two features of my invention which are considered especiallyimportant and which are common to the several constructions shown anddescribed are the provision of a side member for a car-truck outwardlyor laterally curved or offset at its extremity to provide aspring-pocket and the employment therewith of an upwardly-arching yokeconnected to the beam at the sides of the springpocket and affordingalso a pedestal or guides for the boxes.

I claim- 1. A car-truck having its side members composed of flangedbeams, arranged back to back, and with their flanges projectingoutwardly, said beams being outwardly or laterally curved, or offset toprovide a springpocket, substantially as described.

2. A car-truck having its side members composed of flangedbeams,arranged back to back, and with their flanges projectingoutwardly, the lower outer corners of said beams being cut away toafford space for the axlebox and the unsevered portions being offsetlaterally to provide a spring-pocket, and their extremities joined toafiord'an outer bearing or support for the pedestals, substantially asdescribed.

3. A car-truck comprising in its construction, a side member, composedof channelbeams placed back to back, and having their lower corners cutaway to receive the axleboxes, the central portions of said out marginsbeing bent out to provide strengtheningflanges, and the extremitiesdepending below said flanges for attachment to the pedestal members,substantially as described.

4. A car-truck having a side member composed of channel-beams, arrangedback to back and with their lower corners cut away to receive theaxle-box, and the unsevered portions laterally offset to receive thespring,

the lower margins of such offset portions being flanged, and a yoke orpedestal member secured with the channel-beams and adapted to embrace aspring and axle-box, substantially as described.

5. A car-truck having in combination, a side member composed ofchannel-beams arranged back to back, with their lower corners cut awayto receive the axle-box, and the unsevered portions laterally separatedto provide a spring-pocket, and a yoke or pedestal member, having aflange thereof embraced between the channel-bars and secured thereto onopposite sides of the spring-pocket and the extremities of said yoke orpedestal affording guides to the box, substantially as described.

6. A car-truck having a side member having its ends outwardly orlaterally curved or oflset to provide a spring-pocket, and a yoke havingthe legs thereof secured to the beam or bar on opposite sides of saidcurved portion, substantially as described.

7. A car-truck having a side member com posed of a beam, the extremitiesthereof being laterally curved or outwardly offset to pass around thesides of the springs, and a yoke upwardly arched or curved and adaptedto pass over the springs and having the legs thereof connected to theside member adjacent to the offset portion thereof, substantially asdescribed.

8. A car-truck having a side member composed of two beams or barsarranged parallel to each other and having their terminal or endportions outwardly curved or offset to embrace the spring, substantiallyas described.

GEORGE L. HARVEY.

Witnesses:

FREDERICK O. GooDwIN, E. B. KIRBY.

